2663660660577 has 8 divisors (see below), whose sum is σ = 4058911482816. Its totient is φ = 1522091806032.

The previous prime is 2663660660473. The next prime is 2663660660597. The reversal of 2663660660577 is 7750660663662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2663660660577 - 2²⁴ = 2663643883361 is a prime.

It is a super-2 number, since 2×2663660660577² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2663660660577.

It is not an unprimeable number, because it can be changed into a prime (2663660660597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63420491898 + ... + 63420491939.

It is an arithmetic number, because the mean of its divisors is an integer number (507363935352).

Almost surely, 2^{2663660660577} is an apocalyptic number.

It is an amenable number.

2663660660577 is a deficient number, since it is larger than the sum of its proper divisors (1395250822239).

2663660660577 is a wasteful number, since it uses less digits than its factorization.

2663660660577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126840983847.

The product of its (nonzero) digits is 68584320, while the sum is 60.

The spelling of 2663660660577 in words is "two trillion, six hundred sixty-three billion, six hundred sixty million, six hundred sixty thousand, five hundred seventy-seven".